sanity/src/core/form/members/object/fields/asserters.ts

Sanity is a real-time content infrastructure with a scalable, hosted backend featuring a Graph Oriented Query Language (GROQ), asset pipelines and fast edge caches

import {isArraySchemaType, isObjectSchemaType, isPrimitiveSchemaType} from '@sanity/types'

import {
  type ArrayOfObjectsFormNode,
  type ArrayOfPrimitivesFormNode,
  type FieldMember,
  type ObjectFormNode,
} from '../../../store'

export function isMemberObject(member: FieldMember): member is FieldMember<ObjectFormNode> {
  return isObjectSchemaType(member.field.schemaType)
}

export function isMemberArrayOfPrimitives(
  member: FieldMember,
): member is FieldMember<ArrayOfPrimitivesFormNode> {
  return (
    isArraySchemaType(member.field.schemaType) &&
    member.field.schemaType.of.every((ofType) => isPrimitiveSchemaType(ofType))
  )
}

export function isMemberArrayOfObjects(
  member: FieldMember,
): member is FieldMember<ArrayOfObjectsFormNode> {
  return (
    isArraySchemaType(member.field.schemaType) &&
    member.field.schemaType.of.every((ofType) => isObjectSchemaType(ofType))
  )
}